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  1. M

    (Y)

    same to u bro!!!!!!!!! :beer: :friends: :good: :good: :good: :good: :good:
  2. M

    Chemistry paper 21& 5

    how was the paper guys
  3. M

    Tips for Physics p31

    Finally, always read the question carefully! And G O O D L U C K EVERYONE
  4. M

    Tips for Physics p31

    Experiments Involving Temperature Readings should be accurate to fractions of a degree. Stir any liquid being heated. Insulate the apparatus if possible. The thermometer should not be touching the sides of the container it is in, and should be in the middle of the liquid you are measuring the...
  5. M

    Tips for Physics p31

    Graphs With any graph, a minimum of 6 to 8 points are needed, and you must have at least 4 points on a curve. When measuring the gradient of a graph, carry your tangent on to the sides of the graph paper, however big your graph. The triangle you use should be greater than 10 cm in length and...
  6. M

    Tips for Physics p31

    Electrical Experiments With capacitor discharges, either take readings every 5 seconds for the first part of the discharge, or I think that every 10 seconds is sufficient. If a range is specified over which you should take measurements, do not exceed it: you will be penalised. With an analogue...
  7. M

    Tips for Physics p31

    Uncertainties % Uncertainty = When multiplying or dividing quantities, add their % uncertainties together. When adding or subtracting quantities, add their absolute errors together, then divide by the result of the addition/subtraction of the measurement, e.g. for , where , and , the absolute...
  8. M

    Tips for Physics p31

    Miscellaneous With a measurement that varies substantially each time you test it, take at least 4 readings. An example is sand falling from a funnel. For Experiment C, 8 readings are normally sufficient (sometimes even 6). Extra time at the end can be used for writing up the other experiments...
  9. M

    Tips for Physics p31

    Density Measurements When using a micrometer, one full rotation of the barrel is 0.5 mm (50 on the barrel scale). The micrometer reads to 0.01 mm accuracy. Vernier callipers can read to 0.05 mm accuracy. However, it is advisable to quote the figure to 0.1 mm accuracy, as this will give a larger...
  10. M

    Tips for Physics p31

    Moments Precaution: balance the ruler being used first. Use distances from the pivot of greater than 25 cm (250 mm). Weigh the unknown and known masses in your hands before using the ruler, and place the lighter mass as far from the pivot as possible. Measure distances from the pivot to the...
  11. M

    Tips for Physics p31

    Oscillations Perform 3 sets of measurements for each different oscillation, (you will get more marks if you do 2 sets of repeats). Measure at least 30 periods in total. Preferably make each measurement 20 periods long. Precaution: minimise oscillations in any other plane other than the one...
  12. M

    need help in maths P42

    Q9 part (aiii) Q4 part (c) Q5 part b, c, d, e
  13. M

    Excellent websites for extra studying

    exams are still going on
  14. M

    Help us improve XtremePapers!

    DEAR PLANET MASTER Why dont u link ur forum to social sites like: Facebook, twitter orkut etc. so u can attract more people. Also: 1 Add a new group for checkpoint, SATII, pakistan based (FSc & Matric) and AP. so more can get benefit from it. 2 Add past papers for the above ones. 3 Add...
  15. M

    Excellent websites for extra studying

    http://www.bbc.co.uk/schools/gcsebitesize/ http://www.s-cool.co.uk/gcse.html http://www.gcse.com http://www.revisioncentre.co.uk http://www.sparknotes.com http://www.frenchrevision.co.uk http://www.adamzone.co.uk http://www.gcsescience.com http://www.gcseguide.co.uk http://www.topmarks.co.uk...
  16. M

    Excellent note for Islamiat

    http://crampuppy.com/o-levels/islamic-s ... miat.shtml
  17. M

    Good notes for Physics

    http://crampuppy.com/IGCSE/physics/
  18. M

    Good notes for biology

    http://crampuppy.com/IGCSE/biology/
  19. M

    Good notes for economics

    http://crampuppy.com/IGCSE/economics/
  20. M

    Excellent website for extra learning

    http://www.bbc.co.uk/schools/gcsebitesize/ http://www.s-cool.co.uk/gcse.html http://www.gcse.com http://www.revisioncentre.co.uk http://www.sparknotes.com http://www.frenchrevision.co.uk http://www.adamzone.co.uk http://www.gcsescience.com http://www.gcseguide.co.uk...
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